Abstract: The invention relates to a battery arrangement (1) comprising at least one, but particularly a plurality of electrochemical cells (2), the at least one electrochemical cell (2) comprising at least one current conductor (3) extending through a casing (4) of the electrochemical cell (2), characterized in that said at least one current conductor (3) is electrically conductively connected to at least one connecting pin (5).

Abstract: A battery has a battery case body made of aluminum or aluminum alloy, and a battery cover fitted into the battery case body made of aluminum or aluminum alloy. The battery case body and said battery cover have bonding areas, respectively, which are connected by laser welding. In the battery, the thickness of each of bonding areas of a battery case body and a battery cover is smaller than that of the remaining areas.

Abstract: A lithium-ion battery in a housing includes (a) an anode, (b) a cathode, (c) a separator, (d) an electrolyte including a lithium salt and a non-aqueous solvent, and (e) a non-ionic surfactant.

Abstract: A battery terminal including a fastener shaft and a non-parallel slot, which when compressed by the use of a fastener such as a rivet, creates an autogenous spring force in a direction outward from the slot. When an electrode assembly is attached to the battery terminal, the autogenous spring force acts to create a more secure and reliable connection between the battery terminal and the electrode assembly.

Abstract: An electrode for a rechargeable lithium ion battery includes an electro-active material, a (polystyrenebutadiene rubber)-poly (acrylonitrile-co-acrylamide) polymer, and a conductive additive. A battery using the inventive electrode is also disclosed.

Abstract: A tabless battery housed in a sealed package is provided. The packaging material for the battery comprises a conductive material and a sealing material. At least a portion of the interior surface of the conductive material is exposed to form an internal contact between at least one electrode and the conductive material. At least a portion of the exterior surface of the conductive material is also exposed to form an external contact between the electrode and the device.

Abstract: A method for grouping lithium secondary battery packs comprises the following steps: charging and discharging a battery for 1-3 cycles, recording the last discharge capacity C0, setting a capacity lower limit, and determining the battery with the C0 thereof not less than the capacity lower limit to be an eligible battery; discharging the battery to a discharge cut-off voltage Vd so the battery is discharged to a power empty state; charging the empty battery to a capacity C1; storing the battery for time t1 in an environment with a temperature ranging between 20-50° C., recording the battery voltage V1, storing the battery again for time t2 in the environment with the temperature ranging between 20-50° C., recording the battery voltage V2, calculating a voltage difference ?V=V2?V1 and setting the range of ?V; and grouping eligible batteries in a previous step according to a certain capacity grouping standard.

Abstract: The invention concerns a battery pack (1), comprising a plurality of electrically connected battery cells (2), wherein the battery cells (2) are substantially flat with two opposite sides (2a, 2b) and a peripheral edge (2c), and wherein the battery cells (2) are arranged side by side as to form a layered structure, and an electronic arrangement configured to monitor and control the battery cells (2). The invention is characterized in that the electronic arrangement comprises a plurality of individual electronic circuit units (30), each of which being associated with a corresponding battery cell (2), wherein each of the electronic circuit units (30) is configured to be capable of monitoring and controlling its corresponding battery cell (2), and wherein each electronic circuit unit (30) is arranged on a thin and flexible circuit carrying sheet (3) that is arranged at one of the sides (2a, 2b) of the corresponding battery cell (2). The invention also concerns a method for manufacturing of a battery pack (1).

Abstract: The invention provides for an apparatus and method for making a flexible battery that is electrolyte-tight by ensuring that electrolyte does not contact the unsealed portion of the battery enclosure when electrolyte is injected into the battery enclosure and before it is sealed. The apparatus for assembling a flexible battery comprises a support body adapted to support a battery enclosure having an electrode pouch and a fill opening located in an upper portion of the electrode pouch. The apparatus comprises a dispensing element having a discharge orifice that directs the flow of electrolyte inside the electrode pouch and away from the unsealed surfaces of the battery enclosure when the dispensing element is in the fill position. The method of assembling a pouch battery comprises arranging the battery enclosure so that the fill opening is located in an upper portion of the electrode pouch and dispensing the electrolyte into the electrode pouch.

Abstract: The invention provides for an apparatus and method for making a flexible battery that is electrolyte-tight by ensuring that electrolyte does not contact the unsealed portion of the battery enclosure when electrolyte is injected into the battery enclosure and before it is sealed. The apparatus for assembling a flexible battery comprises a support body adapted to support a battery enclosure having an electrode pouch and a fill opening located in an upper portion of the electrode pouch. The apparatus comprises a dispensing element having a discharge orifice that directs the flow of electrolyte inside the electrode pouch and away from the unsealed surfaces of the battery enclosure when the dispensing element is in the fill position. The method of assembling a pouch battery comprises arranging the battery enclosure so that the fill opening is located in an upper portion of the electrode pouch and dispensing the electrolyte into the electrode pouch.

Abstract: A dry-charged lead acid battery 10 is formed by removing the electrolyte through a aperture 13a, and then sealing the aperture 13a with a sealing plug with valve 20 having a rubber valve (check valve) provided therein. Since the formation process in the battery container is employed, the required number of production steps and the cost can be reduced as compared with the conventional dry-charged lead acid battery. Further, since a check valve for preventing the entrance of the external air and opening at a predetermined pressure to allow the leakage of the gas in the battery container to the exterior is used to keep the battery container airtight, the self-discharge of the battery during the storage period between the filling of the electrolyte and the beginning of the use of the battery can be prevented, making it possible to inhibit defective airtightness due to damage of battery container by the production of gas in the battery.

Abstract: A bipolar battery construction is disclosed comprising a substrate, openings in the substrate, an electrically conductive material placed within the openings, a negative and positive current collector foil placed on opposing sides of the substrate and negative and positive pasting frame members. The electrically conductive material may have a melting point below the thermal degradation temperature of the substrate.

Abstract: A battery housing comprises a cell compartment element (1) which at least partially delimits a cell compartment. Said cell compartment is designed to accommodate at least one electrochemical energy storage cell. A lid element (2) which is designed to be connected to the cell compartment element (1) obturates the cell compartment at least in sections thereof. The lid element (2) preferably comprises at least one fastening pin (29) and/or a bore (30) for a fastening pin for fastening the battery housing.

Abstract: Battery assembly comprising a plurality of battery blocks, where each battery block comprises a first metal plate fixedly connected to the positive terminals of a plurality of rechargeable battery cell members and a second metal plate fixedly connected to the negative terminals of the cell members, further comprising a printed circuit board provided with an electronic circuit configured to monitor, control and/or balance said battery blocks, where the metal plates of subsequent battery blocks are fixedly connected to each other such that the battery blocks are electrically configured in series, and where the PCB is mechanically fixed to mounting flanges of the metal plates with mounting means that also provides an electric connection between the metal plates and the PCB. The advantage of the invention is that a self-supporting battery assembly that can be produced in a cost-effective way is provided.

Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.

Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.

Abstract: In a lead-acid battery, a positive active material includes tin in an amount of from not less than 0.2% to not more than 5% based on the weight thereof. The density of the positive active material after formation is from not less than 3.75 g/cc to not more than 5.0 g/cc. When the lead-acid battery is produced by a battery container formation, a time required between the injection of an electrolyte and the beginning of battery container formation is from not less than 0.1 hours to not more than 3 hours.

Abstract: Disclosed are ionically conductive membranes for protection of active metal anodes and methods for their fabrication. The membranes may be incorporated in active metal negative electrode (anode) structures and battery cells. In accordance with the invention, the membrane has the desired properties of high overall ionic conductivity and chemical stability towards the anode, the cathode and ambient conditions encountered in battery manufacturing. The membrane is capable of protecting an active metal anode from deleterious reaction with other battery components or ambient conditions while providing a high level of ionic conductivity to facilitate manufacture and/or enhance performance of a battery cell in which the membrane is incorporated.

Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.

Abstract: In a lead-acid battery, a positive active material includes tin in an amount of from not less than 0.2% to not more than 5% based on the weight thereof. The density of the positive active material after formation is from not less than 3.75 g/cc to not more than 5.0 g/cc. When the lead-acid battery is produced by a battery container formation, a time required between the injection of an electrolyte and the beginning of battery container formation is from not less than 0.1 hours to not more than 3 hours.